Small sample on villain. 3bets light from the small blind against button opens.

Preflop: Don't want to turn hand into a 4bet/fold. Don't want to isolate myself against a 4bet flatting range (which I suspect at these stakes is basically AK exclusively). Calling with position seems optimal.

Flop: Tricky. He hadn't been cbetting many 3bet pots, but I don't have much of a sample size on him / much history. I call because I have the backdoor nut flush draw and two overs that are likely to be good when hit (assuming he cbets 99/TT/JJ/67/98 here). Also, there's a small chance he might just cbet this board because it doesn't hit my range with air, and I might be able to showdown the best hand. If all else fails we are deep stacked and I stand to win an enormous pot if I make my flush against sets or better.

Turn: Trickier. My odds aren't bad and I figure he might continue with bluffs sometimes on that card. Straight draw / pair combos might also continue because we're deep, seems that calling is the only option.

River: ??????

flop: i'd sometimes fold because the board hit our range pretty hard, so his cbetting range should be decently strong. i don't hate the call though. a small-medium sized raise could be good too - it'll be really hard for him to fight back with most of his range. he probably won't fold many hands we're beating, but we do get a free river card pretty often.

turn seems standard

river, i'd very unhappily call the slight overbet, hoping he could have KQ or a bluff

if he's not cbetting a lot in 3bet pots just fold. no need to lose your shirt here.
if youre trying to build an image against him or the table, then prob fine to peel but once you hit you have to call for a 100bbs as played.